A trio of visually impaired swimmers from Phoenix, Ariz., made history this morning when they dove into the chilly San Francisco Bay and braved the waters to successfully escape Alcatraz.

Nineteen-year-old Katie Cuppy, 17-year-old Max Ashton and 25-year-old Tanner Robinson finished the 1.5-mile open-water swim from Alcatraz Island to the foot of the Hyde Street Pier in San Francisco today, according to the Foundation for Blind Children’s Twitter account.

This was the first time blind and visually impaired teammates competed in the 2013 Alcatraz Invitational Swim, a Foundation for Blind Children news release said.

The swimmers have been outspoken that their decision to swim at the 18th Annual Alcatraz Invitational was to tackle the idea that vision loss is just a diagnosis, not a disability.

“I kind of want to prove that blindness isn’t a barrier,” Cuppy told the Arizona Daily Sun. “Blindness isn’t the end of the world.”